Tag Archives: plastic injection molding

What Products Can Be Made from Injection Molding?

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The process is highly versatile and can produce a myriad of parts for a wide variety of applications.

 

When creating a product that requires molded plastic parts, depending on the type of application and type of part you want to produce, you have several processes to choose from. One of the most popular processes to achieve high quality and cost effective plastic parts is injection molding.

 

Injection molding is a manufacturing process for producing parts in large volume – from thousands to millions. Melted resin is injected into a hollow mold until it is completely filled. The injection molding process uses high temperature and extreme pressure to sufficiently fill the interior with molten plastic resin or liquid polymers. The molds are then cooled to release completed plastic parts.

 

The process is highly versatile and can produce a myriad of parts for a wide variety of applications.

 

Typical Products Made with Plastic Injection Molding

Plastic Bottles are the most common product manufactured by the billions each year, ranging in multiple shapes and sizes. Typically, the plastic bottles used to hold potable water and other drinks are made from polyethylene terephthalate (PET), because the material is both strong and light.

 

Electronic Housings are also quite commonly fabricated with injection molding services. Used in devices such as remote controls, computers, televisions, medical equipment, and other consumer electronic components, housings are all produced by injection molding process. Injection molding services can manufacture any custom plastic enclosures for practically any application and sizes.

 

Toys: Imagine a building material which is lightweight, durable, and doesn’t corrode; it comes in many sizes and colors and is designed for easy precise assembly. The Lego brand of building block recognized by all is made of firmer plastic granules which are heated until liquefied and then injected into metal molds in which the plastic cools and solidifies into a studded brick or other shape. But what’s important is that each brick and component is accurately molded so they’ll all fit together. It’s a precision product available in many colors, shapes, and sizes.

 

Agricultural: OEMs designing for the agricultural marketplace are switching to plastic as a low cost alternative to metal components commonly used throughout the industry. Plastics offer higher resistance to impacts during use, humidity, and are able to resist extreme high or low temperatures. UV additives also help protect plastic parts from harsh weather conditions or exposure to corrosive substances.

 

Household: Molded closures, containers, components, and drinkware are just a few of the common items that can be custom fabricated with injection molding.

 

Machinery and Automotive Components: Bumpers, dashboards, radio controls, cup holders, and many other elements found in cars and transportation vehicles, both interior and exterior, are made by the injection molding process.

 

Healthcare Industry: In the healthcare field, there are thousands of products that are made with the injection molding process. The healthcare industry relies heavily on multipurpose plastic products that can be manufactured in bulk, as many of these products are single use, disposable items to maintain sterility or to prevent the spread of germs or disease. From plastic syringes to tools used in medical procedures, injection molding is what helps the medical professionals get their jobs done.

 

Injection Molding is a very common manufacturing method used to produce everyday household items. The applications cover commercial, industrial, and consumer products alike. Injection molding offers the versatility to generate designs that have intricate detail or complexity, down to simpler forms in any range of sizes from small to large objects.

 

This method has produced solid parts such as electronic housings, bottle caps, containers, computers, televisions components, bag accessories, outdoor furniture, agricultural products, toys, machinery components, and much more.

 

If you need plastic injection molding services, I recommend you to visit Shin Fang Plastic Industrial Co., Ltd. – they are the experienced manufacturer of specializing in various plastic injection products. Now, check out their website for more details of plastic injection moulding.

 

Article Source: https://www.ien.com/product-development/article/21014543/what-products-can-be-made-from-injection-molding

5 Major Advantages to Using Plastic Injection Molding for the Manufacturing of Parts

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Plastic injection molding is extremely versatile method of producing parts and products. It is one of the preferred methods for manufacturing parts because it has multiple advantages over other methods of plastic molding. Not only is plastic injection molding simpler and more reliable, it is also extremely efficient. You should have no doubts about using this method to manufacture parts.

 

Here are 5 major advantages of using injection molding for manufacturing plastic parts and components.

 

  1. Detailed Features and Complex Geometry

 

The injection molds are subjected to extremely high pressure. As a result the plastic within the molds is pressed harder against the mold compared to any other molding process. Due to this excessively high pressure, it is possible to add a large amount of details into the design of the part.

 

Furthermore, due to high pressure during the molding process, complex and intricate shapes can easily be designed and manufactured which otherwise would have been too complicated and expensive to manufacture.

 

  1. High Efficiency

 

Once the injection molds have been designed to the customer’s specifications and the presses pre-programmed, the actual molding process is very quick compared to other methods of molding. Plastic injection molding process hardly takes times and this allows more parts to be manufactured from a single mold. The high production output rate makes plastic injection molding more cost effective and efficient.

 

  1. Enhanced Strength

 

In plastic injection molding, it is possible to use fillers in the injection molds. These filler reduce the density of the plastic while it being molded and also help in adding greater strength to the part after it has been molded. In fields where parts need to be strong and durable, plastic injection has an option that other molding processes do not offer.

 

  1. Ability to Use Multiple Plastic Types Simultaneously

 

One of the major advantages of using plastic injection molding for manufacturing parts is the ability to use different types of plastic simultaneously. This can be done with the help of co-injection molding, which takes away the worry about using a specific type of plastic.

 

  1. Automation to Save Manufacturing Costs

 

Plastic injection molding is an automated process. A majority of the injection molding process is performed by machines and robotics which a sole operator can control and manage. Automation helps to reduce manufacturing costs, as the overheads are significantly reduced. Furthermore, with reduced labor force the overall cost of manufacturing the parts is reduced and this cost saving can easily be passed on to the customer.

 

Furthermore, automation allows for making precise and accurate injection molds. Computer aided design (CAD) and computer aided manufacturing (CAM) allow close tolerances during the making of the molds.

 

The Bottom Line

 

Using injection molding also ensures the parts manufactured hardly require any work after the production. This is because the parts have more or less a finished appearance after they are ejected from the injection molds.

 

Today, plastic injection molding is an environment-friendly process. The scrap plastic generated during the production process is reground and re-used. Hence, the process generates very little waste.

 

Learn more information about plastic injection molding or injection moulding products, try to visit Shin Fang Plastic Industrial. The company can provide a variety of plastic bag accessories for customers. Feel free to contact with Shin Fang.

 

Article Source: http://nanomoldcoating.com/5-major-advantages-to-using-plastic-injection-molding-for-the-manufacturing-of-parts/

The Utilization of Vertical Injection Molding Machines

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When it comes to making items that combine light weight, durability, and pleasing shape, look and feel, there’s nothing that quite matches modern plastics. And this is especially true of hand-held items, such as small electronic appliances, where providing ergonomic shape and a grippy, easy-to-hold surface are particularly important.

 

Whether they’re GPS receivers, medical devices, toys, or even kitchen utensils, the best way to produce such items is through the process of over molding. It involves the molding of two different plastics, one on top of, or around, the other, so as to produce what amounts to a single, unified structure that’s strong on the inside yet flexible, colorful, and easy to hold on the outside.

 

Benefits of over molded plastics devices include:

 

  • More Resistant To Shock
  • More Resistant To Water
  • More Resistant To Dust And Vapor
  • More Resistant To Vibration
  • Make Devices More Comfortable To Use
  • Make Devices Just Plain Prettier

 

By now, over molding is a standard process in the injection molding industry, but some methods of executing the process is superior to others. The challenge is to make sure the two pieces, rigid substrate and outer elastomer, to fit together just so, with no gaps, no slack, no possibility of slippage and with no chance of one part pulling on and distorting the shape or integrity of the other. Getting these two molded parts to match up just right takes a good deal of skill and experience. No adhesives can be used, and there should be no manual assembly steps involved, either – it’s mainly a matter of making molds that create a perfect fit and then performing the actual molding process with extreme precision.

 

And it’s here that the right machinery also helps a great deal. Indeed, the best way to produce over-molded parts is with a vertical injection molding machine. It relies on the gentle force of gravity to clamp the inner and outer parts together.

 

That’s different from a horizontal injection molding machine, which relies on mechanical clamping, a method that requires more time and effort and raises the risk of improper fit: Gravity’s pull is always there, always trying to dislocate parts in a horizontal mold. The vertical mold simply takes advantage of gravity instead of trying to fight it.

 

Vertical injection molding equipment is designed with open clamps and rotary tables, which gives them the advantage of being able to work with multiple molds and simultaneous operations such as pre-molding, injection-, and post-molding. The result: less need for manual intervention, greater efficiency, greater productivity, and less cost. What’s more, vertical molding machines often save significant space on the factory floor.

 

In short, vertical injection molding is the method of choice when it comes to producing high-strength, high-touch parts for the electronics, medical, military, and similarly demanding industries.

 

More information about vertical injection molding machine, try to visit the website of Multiplas Enginery Co., Ltd... Multiplas is a leading industrial solutions provider that offers versatile moulding solutions, innovative design and manufactures for the production systems, and provides comprehensive technical support services to the customers committed in 3C electronics, electrical, automotive, medical / optical, and other technical moulding sectors. If you have any interest, please feel free to send inquiry or contact them directly.

 

 

Article Source: http://info.crescentind.com/blog/bid/40004/Over-molding-and-the-utilization-of-vertical-vertical-injection-molding-machines

Plastic Injection Molding and Its Advantages

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Product identification plays an extremely important role in communicating a product’s position and brand in the marketplace. Plastic nameplates can convey messages, brand, classifications, description, schematics, warnings, instructions and many other types of product information.

 

Plastic injection molded nameplates help to identify your products and help them stand out in the crowd. Before we go further, let’s take a quick look at the plastic injection molding process.

 

The Plastic Injection Molding Process

 

The plastic injection molding process is not a complicated one. Molding processes of this sort involving metals go back many years, and basic principles have not changed, just the methods and materials.

 

Of course, you have seen what the finished product looks are. You’ve seen them more times than you may be aware of. You’ve seen them as car emblems, appliance and industrial nameplates, custom plastic nameplates, recreational product nameplates, point-of-purchase, plaques and signs. They fill the world around you, but do you know how are they made?

 

The process begins with a plastic pellet made of a composite of organic and inorganic polymers, plus additives to aid in the melting process. This small pellet is tossed into a hopper with thousands of other pellets. This begins the journey from pellet to product. The next step is preparing the plastic.

 

The pellets are released onto the threads of a giant rotating screw. As the pellets travel along, they are heated to melting temperatures, somewhere around 400 degrees Fahrenheit. Of course, the higher quality the plastic is the higher temperature it takes to melt it. The pellets are rolled along the screw because the process also requires friction and force. The screw provides both as the pellets roll along its surface and crash into each other.

 

Now that all three requirements are met, friction, force and heat, the pellets begin to liquefy and the next step of filling begins. The screw continues to guide the liquid plastic along its threads to a valve. Under high pressure the valve forces the plastic into a custom designed mold – made of heat resistant metals – until every cavity is filled. Once this is achieved the mold goes into the holding phase. The filling and holding phases are crucial steps in the plastic injection molding process. Their execution will determine the quality of the finished product. The metals we use for the mold insure that the last piece made carries the same qualities as the first.

 

The Next Step

 

The pressure on the mold is maintained while the molten plastic cools to a solid state. This stage could take a few minutes as the mold absorbs the heat from the melted plastic, and in turn is cooled by coolant that encircles it. While the part is cooling, the screw returns to its original position, collecting more pellets from the hopper. The product is then ejected from the mold and moves to its secondary processes such as decoration, sub assembly, or shipment. The mold closes, and the process begins all over again.

 

Advantages of the Plastic Injection Molding

 

There are several important advantages of utilizing injection-molded plastic:

 

  1. The plastic injection molding allows complex and intricate shapes to be manufactured. Shapes that would be too difficult or costly to manufacture with different processes.
  2. The plastic injection molding allows for a high volume of plastic nameplates and custom plastic signs to be manufactured at the same time with the same mold and quality.
  3. The metal molds have a long life. When you come back for a future order, the mold will be ready and your next order will be identical to your first. In addition, their initial cost is low too.
  4. The plastic nameplates can be decorated in a variety of ways such as textures in the mold, metallic foil, ink, UV protection, and more.

 

Other Advantages

 

Plastic Injection Molding allows manufacturers to produce custom plastic nameplates and components that would be too costly to make as intricately as required, by utilizing traditional machining methods. Injection-molded plastics also saves you time and money by allowing high numbers of pieces of the component to be made at the same time, with each copy identical to the one before it. This process also reduces labor costs by minimizing the need for manual labor from employees. Finally, there is virtually no wasted material. Any unused or left over plastic can be re-cycled to be reused in the process

 

Shin Fang Plastic Industrial Co., Ltd. was founded in 1974, mainly produced handbag hardware accessories in the early stages. In 1994, the company increased plastic material injection production line. Since it offers stable quality, complete patterns, it obtains great approval from the industry. We offer the customized OEM/ODM service and material selection to satisfy the best quality, minimum cost, and quick response requirement.

 

Our product line includes cart system, side wheel, side release buckle, hook, loop, ring, ladder lock, cam buckle, slide, cord lock, stud, washer, eyelet, shoulder pad, foot stand, pad, strip, handle, bottom case, two colors molding product, diving case, utility box, and tackle box whose are made of a wide plastic material of POM, NYLON, PP, ABS, PVC, HYTREAL, TPR, and others. If you need more details about Shin Fang’s plastic injection molding or plastic injection products, welcome to contact us for more information!

 

 

Article Source: http://EzineArticles.com/8316494